Home / 3,454.40-4,767.48-1,962.78

Finding the Fourth Proportional to 3,454.40, 4,767.48 and 1,962.78

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Solution

The fourth proportional to 3,454.40, 4,767.48 and 1,962.78 is: 2,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.40 : 4,767.48 = 1,962.78 : x
  2. Step 2: Convert to fraction form
    3,454.40/4,767.48 = 1,962.78/x
  3. Step 3: Cross multiply
    3,454.40x = 4,767.48 × 1,962.78
  4. Step 4: Simplify right side
    3,454.40x = 9,357,514.39
  5. Step 5: Solve for x
    x = 9,357,514.39/3,454.40
  6. Step 6: Final answer
    x = 2,708.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.